When moving , closing and opening a window it flickers with black lines.The computer is a SONY VAIO VGN-NR120E and has no problems in Windows 10 and has been like this from day one though it does not occur in Ubuntu 14.04 LTS.No hardware upgrades except RAM , WiFi and Disk

Any help?

  • Do you have an Intel graphic card? Mar 9, 2016 at 10:38
  • @FabioAntunes Yes, it is an Intel GMA X3100
    – Suici Doga
    Mar 9, 2016 at 10:46

1 Answer 1


I used to have the same issue, random flickering then after a search I found this. Try doing this commands:

sudo apt-get install mesa-utils
sudo mkdir /etc/X11/xorg.conf.d/
echo -e 'Section "Device"\n Identifier "Intel Graphics"\n Driver "Intel"\n Option "AccelMethod" "sna"\n Option "TearFree" "true"\nEndSection' | sudo tee /etc/X11/xorg.conf.d/20-intel.conf
sudo reboot

Credits goes to Guy Van Sanden who saw this solution on Reddit.

  • I will try this
    – Suici Doga
    Mar 9, 2016 at 15:31

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